SOLUTION: i need help solving the Matrix system using lines equation 1 -9/2 3/2 9 8 2 using -9r1+r2 (neg9 times row1 plus row 2) HOW IN GODS NAME DID THEY GET 1 -9/

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Question 354066: i need help solving the Matrix system using lines equation
1 -9/2 3/2
9 8 2
using -9r1+r2 (neg9 times row1 plus row 2)
HOW IN GODS NAME DID THEY GET
1 -9/2 3/2
0 97/2 -23/2

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1 -9/2 3/2
9 8 2
using -9r1+r2 (neg9 times row1 plus row 2)
HOW IN GODS NAME DID THEY GET
1 -9/2 3/2
0 97/2 -23/2
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-9*r1 --> -9 81/2 -27/2
Adding that to row 2 gives the result above
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PS God isn't good at math. Fact is, god's a moron.